Willaed m



Patented Mey 22,1883.

l W. M. FULLER.

PULVERIZINGMAGHINERY FOR CRES, Svc.

(Model.)

y No. 278,232.

,Zf-z' y chinery for Ores and other Material; and I do be carried fromthe center to the periphery of with a cover, A, having an opening at thecen- I UNITED STATES PATENT. OFFICE.

WILLARD M. FULLER, OF NEW YORK, ASSIGNOR OF ONEHALF "IOV F. S.

BURR AND J. R. RIOHMO PULVERIZING MAoi-ii SPECIFICATION forming part-ofLetters Application filed July 17, 1882.

ND, or BROOKLYN, N. Y.

NERY FOR CRES, sto.

Patent No. 278,232, dated May 22, 1883.

(Model.)

To all whom 'it may concern Beit known that I, WILLARD M. FULLER, of NewYork, inthe county of New York and State of New York, have inventedcertain new and useful Improvements in Pulverizng Mahereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

This invention relates to certain improvements in apparatus forpulverizing ores and other substances; and it has for its object toprovide a machine in which the material will,

a Asuitable casing and pulverized by the action of rollers pocketed in arevolving disk against an annulus secured in the said casing, theannulusbeing detachable, so that it may he removed and replaced whenWorn, as more fully hereinafter specih'ed. These objects Iaccoinplsh bythe means illustrated in the accompanying drawings, in whichi Figure lrepresents a view, partly in elevation and partly in section, of myimproved machine; Fig. 2, a vertical sectional View thereof; and Fig. 3,a vertical sectional View ofa portion or part of the casing or pan andthe annulus, the latter being indicated as removable from the former.

The letter E indicates a pan or casing, constructed of suitablematerial, mounted upon a hollow shaft, M, which is journaled verticallyin the frame of the machine, as indicated in Fig. 2 of the drawings. Tothe said tubular shaft at its upper end, 01 to the bot-toni of the pan,is secured a beveled-gear wheel, F,'which intergears with a beveledpinion, Gr, mounted upon a horizontal shaft, N, journaled in suitablebearings secured to the frame of the inachine, by means of which arotary motion may be imparted to the pan. The said pan is provided witha removable 'metallic annulus, O, against which the ores are crushed orpulverized, as more fully hereinafter specified, and

ter through which the ores are fed. Within the pan islocated a rotatingdisk, B, having a series of pockets, O, atits periphery, in

is mounted upon a vertical shaft, I, which is stepped in a bearing, R,in the frame, and extends through the tubular shaft M, before mentioned.The said shaft P is provided with a beveled-gear wheel, I, whichintermeshes with a beveledpinion, K, mounted on a shaft, S, journaled insuitable bearings on the frame of the machine, by means of which arotary motion may be imparted to said disk. The shafts N and S areprovided with fast and loose pulleys, by means of which they may berotated or thrown out of operation, in connection with suitable bands.

The operation of my invention is as follows: The pan and disk are drivenin opposite directions by means of their gearing, and the material to bepulverized is fed in through the opening in the center of the cover, andis carried to the periphery thereof by centrifugal force and thrownagainst the annulus, against which it is pulverized by the action of therollers. The disk revolving creates a partial vac.. uuin in the lowerportion of the `pan,which is re- L in the bottom of the pan and passingto the upper side of thc disk, passes through the pulthrough the centralOpening. The pulverized ore is carried off through a suitable conduit,T, one end or portion of which connects with au exhaust-fan, by means ofwhich the withdrawal ot' the pulverized ore may be ei'ected.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

The combination, in a pulverizing-machine, ot' the rotary pan andreversely-rotating disk and their operating-gearing, the rollers looselylocated in pockets in said disk, and the detachable annulus againstwhich the ores are crushed, the said pan having openings at the top andbottom, and a conduit for carrying oli' the pulverized ore,substantially as specified.

In testimony that I claim the foregoing as my own invention I afx mysignature-in the presence of two witnesses.

WILLARD ,at FULLER.

Witnesses A. M. WHITBEOK,

Which set loosely the rollers I). The said disk JOHN H. KATTENsTRo'rH.

lieved by the air, which, entering the apertures verized material andcarries it out of the pan Y

